function startHighlight() {
	var rows = document.getElementsByTagName("li");
	for(var i=0; i<rows.length; i++) {
	  row = rows[i]
	  if (row.className.match('hover')) {
		var ocn = row.className;
	  	row.onmouseover = function() { this.className = "hover-on" };
	 	row.onmouseout = function() { this.className = ocn };
	  }
	}
}

Event.observe(window, 'load', startHighlight);